10621743266 has 8 divisors (see below), whose sum is σ = 15983518764. Its totient is φ = 5293903680.

The previous prime is 10621743199. The next prime is 10621743277. The reversal of 10621743266 is 66234712601.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7978241041 + 2643502225 = 89321^2 + 51415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10621743266² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8483195 + ... + 8484446.

Almost surely, 2^10621743266 is an apocalyptic number.

10621743266 is a deficient number, since it is larger than the sum of its proper divisors (5361775498).

10621743266 is a wasteful number, since it uses less digits than its factorization.

10621743266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16967956.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 10621743266 in words is "ten billion, six hundred twenty-one million, seven hundred forty-three thousand, two hundred sixty-six".